4 ideas
9560 | S5 provides the correct logic for necessity in the broadly logical sense [Fine,K] |
17743 | De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki] |
16285 | A possible world can be seen as a complete and consistent novel [Jeffrey] |
19155 | Instead of gambling, Jeffrey made the objects of Bayesian preference to be propositions [Jeffrey, by Davidson] |